Tool for fitting pistons in position



April 1, 1924. 1,488,628

. T. s. WATSON.

TOOL FOR FITTING PISTONS IN POSITION Filed Aug. 17. 1922 lf/T/Vf" 5 3mm Patented Apr. 1, 1924.

UNETED STATES 1 1,488,628 PATENT OFFICE.

THOMAS S. WATSON, OF ELECTRA, TEXAS.

TOOL FOR FITTING PISTONS IN POSITION.

Application filed August 1'7, 1922. Serial No. 582,461.

To all whom it may concern:

Be it known that I, THOMAS S. Warson, a citizen of the United States, residing at Electra, in the county of Wichita and State of Texas, have invented certain new and useful Improvements in Tools for Fitting Pistons in Position, of which the following is a specification.

This invention relates to a tool for fitting pistons in position or placing the pistons in position in the supporting blocks of an en gine and has for its object the production of a simple and efiicient means for driving the piston to its proper position and closing the piston rings evenly for preventing the rings from breaking while the piston is being placed in position.

Another object of this invention is the production of a simple and efficient tool consisting of a minimum number of parts and which may be eiiiciently operated.

Other objects and advantages of the present invention will appear throughout the following specification and claim.

In the drawings Figure 1 is a side elevation of the p'mton, the tool and block of the engine being shown in section.

Figure 2 is a side elevation of the tool, and I Figure 3 is a top plan view of the tool, the jaws being shown in a closed or gripping position.

By referring to the drawings it will be seen that 1 designates the ordinary block of an automobile engine, being provided with the usual opening 2 through which the piston 3 is adapted to be inserted into the cylinder of the engine. The usual piston rings t are carried by the piston 3 and as usual with such rings 4, the rings extend beyond the side edges or face of the piston and must necessarily be compressed in order tha the piston may be properly seated within the cylinder of the engine through the opening 2.

In order to accomplish the desired pur pose, an efficient tool is employed comprising a primary jaw 5 and auxiliary jaw 6. Each jaw is provided with a. semi-circular piston gripping bowl 7 the bowl being pitched inwardly toward its bottom edge as clearly shown in Figures 1 and 3 of the drawings. Each bowl 7 is supported upon a suitable handle 8, the handles being overlapped as shown clearly in the drawings and pivotally connected together as indicated at 9 at a point adjacent bowl 7 of each handle. It will therefore be seen that the bowl 7 when brought together in a closed position such as is illustrated in Figure 3, will'produce a funnel-like structure, being pitched inwardly toward the lower edges thereof, thereby permitting a piston 3 to be seated within the bowl 7 of the respective jaws 5 and 6 for conveniently directing the piston into the aperture 2 of the block 1. When the bowls 7 are arranged in a closed position such as shown in Figure 3 and also illustrated in Figure 1, the lower discharge edge of the bowl is preferably of the same diameter as the aperture 2, thereby directing the piston 3 into the aperture 2 and causing the piston rings 4 to be compressed within their piston grooves and thereby cause the pistons to be readily seated in their proper position through the aperture 2 into the cylinder of the engine. It should be understood that the piston may be conveniently and easily lifted to its proper position for placing the same through the aperture 2, due to the fact that the handles 8 may be spread apart, thereby opening the jaws 5 and 6 preparatory to gripping the piston 3. The jaws may then be swung to a closed position, for facilitating raising the piston to its proper position whereupon the jaws may be again loosened to a sufficient extent to permit the piston to be seated through the aperture 2 into the cylinder of the engine.

From the foregoing description it will be seen that a very simple and efiicient tool has been produced for the purpose of placing pistons in their proper position and at the same time preventing the piston rings from .being broken in the process of seatlng the piston in its position. Due to the construction of the tool illustrated, the piston rings will be conveniently compressed so as to prevent the rings from coming in contact with the upper edge of the block while the piston is being placed in position, in this way preventing the rings from breaking or becoming otherwise unfit for use.

It should be understood that certain detail changes in the mechanical construction may be employed without departing from the spirit of the invention as long as these changes fall within the scope of the appended claim.

Having described the invention what is claimed is:

As a new article of manufacture a tool for facilitating the placing of :1V piston Within the cylinder of an engine comprising a, plurality of jaws, each provided with ahandle, the handles being pivot-ally connected to- 5 getlier and arranged in cross relation, each handle terminating at one end in a bowl like substantially semi-circular piston gripping portion of material Width and being pitched inwardly toward its lower edge for 10 producing t funnel-like guide for adjusting a piston to proper position, the bowl-like portions 01" the jaws When being brought together constituting a substantially circular funnel-like guide. In testimony whereof I ailix my signature is in presence of tWo Witnesses.

THOMAS S. WATSON Witnesses:

BOBBIE ALFORD, Mrs. E. BURTON. 

